CN110359920B - Emergency sealing device for shield tail - Google Patents
Emergency sealing device for shield tail Download PDFInfo
- Publication number
- CN110359920B CN110359920B CN201910703848.3A CN201910703848A CN110359920B CN 110359920 B CN110359920 B CN 110359920B CN 201910703848 A CN201910703848 A CN 201910703848A CN 110359920 B CN110359920 B CN 110359920B
- Authority
- CN
- China
- Prior art keywords
- shield
- rigging
- shield tail
- baffle
- machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 38
- 230000005641 tunneling Effects 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 239000004576 sand Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0635—Tail sealing means, e.g. used as end shuttering
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a shield tail emergency sealing device which comprises a base, a shaft, a force bearing baffle, a sealing baffle, a rigging limiting ring and a rigging, wherein the rigging tensioning power unit is formed by the base, the shaft, the force bearing baffle, the sealing baffle, the rigging limiting ring and the rigging; the invention provides a simple, effective and low-cost shield tail emergency sealing device, which is simple and convenient to operate and high in reliability, can quickly achieve the sealing effect when needed, and can effectively avoid the safety quality accident caused by the failure of a shield tail brush; economic loss caused by safety quality stories due to failure of the shield tail brush can be effectively avoided; casualties caused by safety accidents due to failure of the shield tail brush can be effectively avoided; the social negative influence caused by safety quality stories due to failure of the shield tail brush can be effectively avoided; the construction period loss caused by safety quality stories due to failure of the shield tail brush can be effectively avoided.
Description
Technical Field
The invention relates to the field of earth pressure balance shield machines, slurry balance shield machines and pipe push machines, in particular to a device for sealing a shield tail of a shield machine emergently under the condition that the seal of a shield tail brush of the shield machine fails.
Background
With the continuous development and progress of modern society, urban population and area are continuously increased, road traffic congestion is trapped around each large city, the improvement of public traffic is an important means for solving the road congestion in the cities, particularly underground rail traffic (namely subways) is popular due to the advantages of high efficiency, convenience, rapidness, environmental protection, large traffic volume, land saving and the like, and the subways are built in domestic and even in each large city in the world in the last two decades.
The number of cities which have been examined and approved in China to build subways reaches 43, the total operating mileage reaches 5250 kilometers, and the planned routes reach 8300 kilometers, and the cities are rapidly increasing. The most main construction mode for constructing the subway tunnel at present is the construction of a shield machine, and the shield machine has the advantages of safety, high efficiency and small influence on ground traffic when being used for carrying out the subway tunnel construction. Nevertheless, the automation degree of the shield machine still has a great improvement space at present. The shield tail brush used for sealing the shield tail of the shield machine at present is a steel wire brush which is fixed on the inner side of the tail part of a shield shell of the shield machine and is filled with grease, if the shield tail brush fails in sealing due to abrasion, falling and the like, water gushing and sand gushing accidents can occur, the shield machine is damaged if the water gushing and sand gushing accidents occur, the ground surface collapses and the ground surface buildings are damaged if the water gushing and sand gushing accidents occur, and the ground surface collapses or the tunnel collapses if the water gushing and sand gush accidents occur if the water gush and sand gush happen if the water gush and sand gus.
Therefore, the emergency shield tail sealing device can rapidly seal the shield tail in a short time when the shield tail brush of the shield tunneling machine fails, can effectively guarantee the safety of shield construction, and ensures the safety of building and pedestrian driving above a shield tunnel.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides an emergency sealing device for a shield tail, which can rapidly seal the shield tail through simple operation when a shield tail brush of a shield tunneling machine fails, so as to prevent safety accidents.
The purpose of the invention is realized as follows: a shield tail emergency sealing device comprises a force-bearing structure unit consisting of a base, a shaft, a force-bearing baffle plate and a rigging limiting ring, and a rigging tensioning power unit consisting of a sealing baffle plate, a rigging and a rigging tensioning power device; the base is multiple and is fixed on the inner edge of the shield shell of the shield machine by a central shaft surrounding the shield shell of the shield machine, the position of each base is consistent with that of each group of shield tail brushes in the axial direction of the shield shell of the shield machine, and each base is positioned at the forefront part of each group of shield tail brushes; one end of each base facing the shield tail brush of the shield tunneling machine is hinged with the left end of the bearing baffle through a shaft; the rigging limiting ring is fixedly arranged below one side of each bearing baffle close to the tunnel segment; the whole sealing baffle is of an annular structure surrounding a tunnel segment and is arranged on the bearing baffle close to the upper surface of the inner edge of the shield shell of the shield machine; the rigging is of a flexible annular structure and sequentially penetrates through annular holes of all rigging limiting rings to form a closed ring, one end of the rigging is fixed to the inner edge of a shield shell of the shield machine, and the other end of the rigging is connected with a rigging tensioning power device fixedly arranged on the inner circular surface of the shield shell of the shield machine.
Furthermore, a wedge-shaped opening is formed in one end, close to the shield tail brush, of the sealing baffle, and one end, close to the shield tail brush, of the bearing baffle is wrapped in the wedge-shaped opening.
Furthermore, a cavity is arranged at a bent part at one end of the sealing baffle plate, which is wrapped by the bearing baffle plate.
Furthermore, the axis of the annular hole of the rigging limiting ring is perpendicular to the axis of the shield shell of the shield tunneling machine.
Further, the rigging is an anti-corrosion steel wire rope; the rigging tensioning power device is a steel wire rope reel.
The invention has the beneficial effects that: the invention provides a simple, effective and low-cost shield tail emergency sealing device, which is simple and convenient to operate and high in reliability, can quickly achieve a sealing effect when needed, and has the following beneficial effects:
1. the safety quality accident caused by the failure of the shield tail brush is avoided;
2. economic loss caused by safety quality stories due to failure of the shield tail brush is avoided;
3. casualties caused by safety accidents due to failure of the shield tail brush are avoided;
4. social negative effects caused by safety quality stories due to failure of the shield tail brush are avoided;
5. the construction period loss caused by safety quality stories due to failure of the shield tail brush is avoided.
Drawings
FIG. 1 is a schematic diagram showing the relative positions of the shield shell, the shield tail brush and the tunnel segment of the shield tunneling machine.
Fig. 2 is a general state diagram of the present invention.
Fig. 3 is a diagram illustrating the effect of the present invention.
Fig. 4 is a plan expanded view (in part) of the sealing baffle of the present invention.
Fig. 5 is a view showing a sealing state when the present invention is used.
Fig. 6 is a perspective view of the present invention.
In the figure: 1. a shield shell of a shield machine; 2. a shield tail emergency sealing device; 3. a shield tail brush; 4. a tunnel segment; 5. a base; 6. a shaft; 7. a bearing baffle plate; 8. sealing the baffle; 9. a rigging limit ring; 10. a rigging; 11. a cavity.
Detailed Description
The invention will be further described with reference to the accompanying drawings:
as shown in fig. 1-6, the shield tail emergency sealing device of the present invention comprises a base 5 for fixing the main part of the device to the inner edge of the shield shell of the shield machine; the bearing baffle 7 is connected with the base 5 through a shaft 6 and can rotate around the shaft 6; the sealing baffle 8 is arranged on the bearing baffle 7, and the bearing baffle 7 is half wrapped in the sealing baffle 8, the sealing baffle 8 is annular, and one side of the sealing baffle is provided with a wedge-shaped opening; the rigging limiting ring 9 is connected with the force bearing baffle 7; the bearing structure units are arranged along the inner edge of the shield shell in an adjacent manner according to the diameter of the shield, and are firmly connected with the inner edge of the shield shell through the base 5; the rigging 10 sequentially passes through the rigging limiting ring 9 with a single force-bearing structure to form a closed ring, one end of the closed ring is fixed on the inner edge of the shield shell of the shield tunneling machine, and the other end of the closed ring is connected with a rigging tensioning power device;
the shield tail emergency sealing device is in a normal state as shown in fig. 2, and when shield tail emergency sealing is required, the operation comprises the following steps:
step 1: starting a rigging tensioning power device to tension the rigging 10;
step 2: under the action of the rigging 10, the bearing baffle 7 of the bearing structure unit rotates around the shaft 6;
and step 3: the bearing baffle 7 rotates to the free end to contact with the outer surface of the tunnel segment;
and 4, step 4: under the action of the rigging 10, the bearing baffle 7 extrudes the sealing baffle 8 to be closely attached to the outer surface of the tunnel segment, and simultaneously, the wedge openings of the sealing baffles 8 are also extruded mutually and attached seamlessly, so that the spaces on the two sides are completely divided, and the purpose of sealing the shield tail is achieved, wherein the sealing state is as shown in fig. 5.
The above embodiments are only for illustrating the preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention within the knowledge of those skilled in the art should be considered as the protection scope of the present application.
Claims (5)
1. The utility model provides a shield tail emergency seal device which characterized in that: the cable rigging tensioning power unit comprises a bearing structure unit consisting of a base (5), a shaft (6), a bearing baffle (7) and a cable rigging limiting ring (9), and a cable rigging tensioning power unit consisting of a sealing baffle (8), a cable rigging (10) and a cable rigging tensioning power device; the bases (5) are multiple and are fixed on the inner edge of the shield shell of the shield machine by a central shaft surrounding the shield shell of the shield machine, the position of each base is consistent with that of each group of shield tail brushes in the axial direction of the shield shell of the shield machine, and each base is positioned at the forefront part of each group of shield tail brushes; one end of each base (5) facing the shield tail brush of the shield tunneling machine is hinged with the left end of a bearing baffle (7) through a shaft (6); the rigging limiting ring (9) is fixedly arranged below one side of each bearing baffle (7) close to the tunnel segment (4); the whole sealing baffle (8) is of an annular structure surrounding the tunnel segment (4) and is arranged on the bearing baffle (7) close to the upper surface of the inner edge of the shield shell of the shield machine; the rigging (10) is of a flexible annular structure, sequentially penetrates through annular holes of all rigging limiting rings (9) to form a closed ring, one end of the rigging (10) is fixed on the inner edge of a shield shell of the shield machine, and the other end of the rigging is connected with a rigging tensioning power device fixedly arranged on the inner circular surface of the shield shell of the shield machine.
2. The shield tail emergency seal of claim 1, wherein: one end of the sealing baffle (8) close to the shield tail brush is provided with a wedge-shaped opening, and one end of the bearing baffle close to the shield tail brush is wrapped in the wedge-shaped opening.
3. The shield tail emergency seal of claim 2, wherein: and a cavity (11) is arranged at the bent part at one end of the sealing baffle (8) wrapped with the bearing baffle.
4. The shield tail emergency seal of claim 1, wherein: the annular hole axis of the rigging limiting ring (9) is perpendicular to the shield shell axis of the shield tunneling machine.
5. The shield tail emergency seal of claim 1, wherein: the rigging (10) is an anti-corrosion steel wire rope; the rigging tensioning power device is a steel wire rope reel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910703848.3A CN110359920B (en) | 2019-07-31 | 2019-07-31 | Emergency sealing device for shield tail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910703848.3A CN110359920B (en) | 2019-07-31 | 2019-07-31 | Emergency sealing device for shield tail |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110359920A CN110359920A (en) | 2019-10-22 |
| CN110359920B true CN110359920B (en) | 2020-12-22 |
Family
ID=68223069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910703848.3A Active CN110359920B (en) | 2019-07-31 | 2019-07-31 | Emergency sealing device for shield tail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110359920B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1524403A1 (en) * | 2003-10-15 | 2005-04-20 | Volker Dipl.-Ing. Hentschel | Tail sealing for a shield tunneling machine |
| JP2007077735A (en) * | 2005-09-16 | 2007-03-29 | Mitsubishi Heavy Ind Ltd | Tunnel excavator |
| CN102588609A (en) * | 2012-03-16 | 2012-07-18 | 盾建重工制造有限公司 | Emergency tail seal device for shield machine and mounting structure thereof |
| CN105019910A (en) * | 2015-07-27 | 2015-11-04 | 北京市市政四建设工程有限责任公司 | Shield tail sealing device and shield tunneling machine |
| CN106837359A (en) * | 2017-02-09 | 2017-06-13 | 中铁十局集团城市轨道工程有限公司 | A kind of arrival portal sealing device and seal construction method |
| CN208416546U (en) * | 2018-06-26 | 2019-01-22 | 北京市政建设集团有限责任公司 | A kind of shield reception construction seal rubber cord |
-
2019
- 2019-07-31 CN CN201910703848.3A patent/CN110359920B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1524403A1 (en) * | 2003-10-15 | 2005-04-20 | Volker Dipl.-Ing. Hentschel | Tail sealing for a shield tunneling machine |
| JP2007077735A (en) * | 2005-09-16 | 2007-03-29 | Mitsubishi Heavy Ind Ltd | Tunnel excavator |
| CN102588609A (en) * | 2012-03-16 | 2012-07-18 | 盾建重工制造有限公司 | Emergency tail seal device for shield machine and mounting structure thereof |
| CN105019910A (en) * | 2015-07-27 | 2015-11-04 | 北京市市政四建设工程有限责任公司 | Shield tail sealing device and shield tunneling machine |
| CN106837359A (en) * | 2017-02-09 | 2017-06-13 | 中铁十局集团城市轨道工程有限公司 | A kind of arrival portal sealing device and seal construction method |
| CN208416546U (en) * | 2018-06-26 | 2019-01-22 | 北京市政建设集团有限责任公司 | A kind of shield reception construction seal rubber cord |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110359920A (en) | 2019-10-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107664035B (en) | Shield-well-after-shield construction method for shield pipe gallery | |
| CN112879022B (en) | Tunneling method of tunneling equipment for tunnel communication channel by means of flexible sleeve system | |
| CN110359920B (en) | Emergency sealing device for shield tail | |
| CN106702909A (en) | Integral swiveling structure for double-body steel box girder and construction method thereof | |
| CN107119579A (en) | A kind of Frame Pier swivel bridges and its design and construction method for taking into account traffic above-ground | |
| CN106099757A (en) | A kind of transmission line insulator crosses over crane span structure and construction technology thereof | |
| CN103806373B (en) | Oblique pull assembly type steel bridge on highway suspension cable anchor system | |
| CN215444085U (en) | High-strength flexible stainless steel part | |
| CN107605510B (en) | Dragline type steel grid arch frame and construction method thereof | |
| CN203730009U (en) | Embedded groove connecting piece of shield tunnel lining structure | |
| CN206928193U (en) | A kind of Frame Pier swivel bridges for taking into account traffic above-ground | |
| CN214219647U (en) | Large-tonnage cable-stayed bunched rock anchor system and suspension bridge | |
| CN203112386U (en) | Tower type truss mounting structure without assistance of high altitude hoisting equipment | |
| CN109811606B (en) | Ramp reconstruction method for overhead expressway of assembled up-down ramp | |
| CN205445101U (en) | Column mansion | |
| CN208120639U (en) | Shield machine twin beams section of jurisdiction connects lifting device | |
| CN208308171U (en) | Construction elevator cable protector | |
| CN2603201Y (en) | Lining structure for double-round shield construction method tunnel | |
| CN204643695U (en) | A kind of development machine starts traction system | |
| CN112793593B (en) | Overhead belt cableway transportation system | |
| CN1321258C (en) | Two-circle shield method tunnel lining structure | |
| CN201784728U (en) | Traveling gear for rotary drilling rig | |
| CN215325079U (en) | Overhead belt cableway transportation system | |
| CN216515579U (en) | Deep well pile driver | |
| CN220203919U (en) | Pumped storage power station underground factory building arrangement structure suitable for TBM construction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |